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• Streaming playlist with browser overlay [closed]

  28 juin 2024, par Tchoune

  Do you have any idea how I can stream a video playlist on twitch (with ffmpeg or another lib) and overlay a web page (with sub twitch alerts for example).

  


  I also need to be aware that my system needs to be multi-user. A user can stream on 1 to n different twitch channels. (multi instance).

  


  For my production, I plan to use linux server without GUI. I've been looking for a solution for 4 months, but I've run out of ideas.

  


  I've already tried xvfb to create a virtual desktop and display a chorimum browser, but it's not effective for production.
I've tried the whole pupeertee thing but it's not usable either.

  


  And my backend server is under nodejs with adonisjs.
I'm currently using ffmpeg to broadcast a video playlist with m3u8 :

  


  startStream(): number {
let parameters = [
  '-nostdin',
  '-re',
  '-f',
  'concat',
  '-safe',
  '0',
  '-vsync',
  'cfr',
  '-i',
  `concat:${app.publicPath(this.timelinePath)}`,
]

let filterComplex = ''

if (this.logo) {
  parameters.push('-i', app.publicPath(this.logo))
  filterComplex += '[1:v]scale=200:-1[logo];[0:v][logo]overlay=W-w-5:5[main];'
} else {
  filterComplex += '[0:v]'
}

if (this.overlay) {
  parameters.push('-i', app.publicPath(this.overlay))
  filterComplex += '[2:v]scale=-1:ih[overlay];[main][overlay]overlay=0:H-h[main];'
}

filterComplex += `[main]drawtext=fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf:textfile=${app.publicPath(this.guestFile)}:reload=1:x=(w-text_w)/2:y=h-text_h-10:fontsize=18:fontcolor=white[main]; [main]drawtext=fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf:text='%{localtime\\:%X}':x=10:y=h-text_h-10:fontsize=16:fontcolor=white`

parameters.push(
  '-filter_complex',
  filterComplex,
  '-copyts',
  '-pix_fmt',
  'yuv420p',
  '-s',
  '1920x1080',
  '-c:v',
  'libx264',
  '-profile:v',
  'high',
  '-preset',
  'veryfast',
  '-b:v',
  '6000k',
  '-maxrate',
  '7000k',
  '-minrate',
  '5000k',
  '-bufsize',
  '9000k',
  '-g',
  '120',
  '-r',
  '60',
  '-c:a',
  'aac',
  '-f',
  'flv',
  `${this.baseUrl}/${encryption.decrypt(this.streamKey)}`
)

this.instance = spawn('ffmpeg', parameters, {
  detached: true,
  stdio: ['ignore', 'pipe', 'pipe'],
})


  


  I've thought of using Webrtc, but it doesn't seem to meet my needs.

  


  I know that Gstreamer has wpeWebKit or wpesrc to do this, but there's no nodejs wrapper and above all it doesn't take playlist input (m3u8 or txt) into account...

  


  If anyone has any new ideas, I'd be very grateful.

  


• Edit duration of video with ffmpeg/ffprobe

  16 octobre 2020, par ashish1512

  Currently in my application, I extract the duration of the video from the metadata.
The objective is that even if the video metadata has incorrect duration, I'll use ffmpeg to decode the video and calculate the correct duration.
I want to test this and want a video which has an incorrect duration in its metadata.
How can I edit the metadata of a regular video using ffmpeg or other ways to create one with an incorrect duration ?

  


  Or if any of you have such a video, could you pls share it with me ?

  


• Make sure CMake build files end up in release tarball

  29 septembre 2019, par Erik de Castro Lopo

  Make sure CMake build files end up in release tarball
  

  • [DH] Makefile.am
  • [DH] doc/Makefile.am
  • [DH] doc/html/Makefile.am
  • [DH] doc/html/images/Makefile.am
  • [DH] examples/Makefile.am
  • [DH] examples/c/Makefile.am
  • [DH] examples/c/decode/file/Makefile.am
  • [DH] examples/c/encode/file/Makefile.am
  • [DH] examples/cpp/Makefile.am
  • [DH] examples/cpp/decode/file/Makefile.am
  • [DH] examples/cpp/encode/file/Makefile.am
  • [DH] microbench/Makefile.am
  • [DH] src/Makefile.am
  • [DH] src/flac/Makefile.am
  • [DH] src/libFLAC++/Makefile.am
  • [DH] src/libFLAC/Makefile.am
  • [DH] src/libFLAC/ia32/Makefile.am
  • [DH] src/metaflac/Makefile.am
  • [DH] src/plugin_common/Makefile.am
  • [DH] src/plugin_xmms/Makefile.am
  • [DH] src/share/Makefile.am
  • [DH] src/test_grabbag/Makefile.am
  • [DH] src/test_grabbag/cuesheet/Makefile.am
  • [DH] src/test_grabbag/picture/Makefile.am
  • [DH] src/test_libFLAC++/Makefile.am
  • [DH] src/test_libFLAC/Makefile.am
  • [DH] src/test_libs_common/Makefile.am
  • [DH] src/test_seeking/Makefile.am
  • [DH] src/test_streams/Makefile.am
  • [DH] src/utils/Makefile.am
  • [DH] src/utils/flacdiff/Makefile.am
  • [DH] src/utils/flactimer/Makefile.am
  • [DH] test/Makefile.am